Grate.



A. V. DAVIDSON.

GRATE.

APPLIOATION FILED FEB.3. 1910.

Patented Aug. 22, 1911 2 SHEETS-SHEET l.

N VENTOR I (fli/11711256 [/Daz/ti an WITNESSES A. V. DAVIDSON.

GRATE.

APPLICATION I'ILED PEB.3. 1910.

1,001,361. Patented Aug.22, 1911.

2 BHBETS-BHEET 2.

Ullllllllllll II'IIIHIIIIIITTH o WITNESSES INVENTOR A'TORN EY AMBROSE V. DAVIDSON, OF CANTON, OHIO.

GRATE.

Specificaton of Letters Patent.

Application filed February 3, 1910.

Pateted Aug'. 22, 1911.

Serial No. 541,686.

To (LZZ whom it maq] concern:

Be :it known that I, Amnnosn V. I).-\\'I1)- son, a citizen ot' the United States, residing at Canton, in the county ot' Star-l( and State ol? Ohio, have in'vented a certain new and useful Improvement. in (lrates, ot which the following is a spccifieation.

My invention relates to a ;new and usctul improvement in grates tor 't'urnaces and stoves, and has for its object to provide an exceedingly simple and ettective device ot this character u 'hereby said grate may be readily and quickly shaken and thoroughly cleaned without shaking 't'uel through the same.

Another object of the invention is to construct the grate proper of two separate parts which will reVolVe in dittcrent directions, when being shahen tor removing the ashes therefrom.

Tn a grate of the ordinary cmstruction which rcvolves in but one direction at the same time, the enter edge is traveling many times faster than that portion near the center theretore when the grate has been shahen suliciently to remove the ashcs *from the center a considerable amount ot :t'uel has passed between the moshes thereof near its periphery, and these are the movements which I dcsire to neutralize.

With these ends in View, this invention consists in the details of (-,onstruction and combination of elements hereinafter set 'forth and then specilically designated by the claims.

In order that those skilled in the art to which this invention appertains may understand how to make and use the same, I will describe its construction in detail, re't'erring by letter to the accompanyingdrawingl'orm ing a part ot' this specilication, in wlieh--- Figure 1 is a longitudinal sectional View ot' a 'urnace embodying my improvement, said section being just above the grate line. Fig. 2, a Vertical seetional 'View thereot. Fig. 3, a plan `View ot the grate rest. `Fig. l', a similar View of the segmental gears showing their relation to one another, and Fig. 5, an edge View of the grate ring.

In carrying out my invention as here embodied, A represents the walls ot' the 't'nrnace, in which are formed bearings 'tor the trunnions B of the grate rest C, composed et' a center hearing D, having spokes E radiating therefrom, with which is :forn'ied the ring F, having an internal upwardly extending llangc (i. W'th this ring is 'tormed the l orwartlly exlending 'l'ran'e l l, having a slot l tor the reception ot the holding hool( to he hereinal'tcr described.

l`he center hearing I) has a holc 'l lherein through which passes the sha'l't l( o'" the coical grate central tucl support L, and on the sha'li'l l( belcw the grate rest is mounted the segn'enlal gear ru, which is held in its proper position by the pin N or its equivalent, will'. the lcelh o'l' which mesh the seg mental gear U, which is pivotcd to the lug l l'ormcd with the under surface o'l" the grate rest, and held in place hy the pin Q` or its equivalent. W'ith this segucntal gear is :tormed the shank lt, having a hi'tur ated portion h'. between the members ot which operalcs the extension 'l` 'l ormed integral with the under surtace ot' the grate ring ll, said grate ring having a central opening V through which passes the conical central tuel support IQ; said grate ring has its bearing upon a numhcr ot small whcels XV, which are placed al suitable intcrrals in socltcts X 't'crmcd in the grate rest. 'l`he grate rest is held in its horizontal o' nornal position by a hool( Y, which is pivoted at Z to the root ot the ash pit, the nose Z' ot said hook engaging the slot l in the 'l''ame ll o'l" the grate resl. y disengaging this hook the 'l'ronl portion of the grate rest is allowed to move downward until it rests upon the base, which will bring the grate to a sullicient angle to allow the clinkers, 't'uel or l'oreign matter to he raked lherel'ron. On the grate ring is also toi-med an ear to which is tastcncd one end of the shaker rod l', the 'tree end ol' said rod passing through the walls ol the heater to the 'front o'l the same, whcrchy it may be lahen hold ot by the operator 'tor shuhing the grate.

The operation ot the deVice is as 'l ollo\\'s:-- l moving the shaker rod l' lacl ward and '1'or\\'ard. the grate ring l will he rotated, causing the hil'urcatcd cnd ot the shanh ll of the se; 'mcntal gear 0 to oscillate through the medium ot' the extension T, and since the sepunental gear is pivoted to the lug l and is mcshing with the segmental gear M, the last named se, 'mental gear will rotale in the opposite direction, carrying with it the conical central :tucl support L, because ot it being seeurely mounled upon the shaft K.

From this description it will be seen that when the grate is Shaken, the two parts thereof will move in opposite directions, and the fuel or ashes thereon will have a tendency to grind against one another, causing the ashes to fall downward through the grate.

Of course I do not wish to be limited to the exact details of Construction here shown, as these may be varied within the limits of the appended claims without departing from the spirit of my invention.

Having thus tully described my invention what I claim as new and useful, is

1. In a device of the character described, the combination with a heating device, of a grate rest composed of a center hearing having a vertical hole therein, a number of radiating arms, an integral ring, said ring being provided with an internal fiange and a frame provided with a slot formed with the rings, trunnions formed with said rest mounted in bearings in the walls of the heating device, wheels mounted upon the rest, a grate ring having an extension and an ear formed therewith and provided with a central opening adapted to rest upon the wheels, a conical central :t'uel support, a shaft fo'rmed therewith passing through the hole in the hearing of the rest, a shaking rod, one end of which is connected to the ear and the opposite end passing through the walls oi' the heating device, a segmental gear securely mounted upon the lower end of the shaft, and another segmental gear pivoted to the grate rest and provided with a shank with which engages the extension of the grate ring so that the central fuel support and grate ring will move in opposite directions during the shaking operation.

2. In a device of the character described, the combination with a heating device, of a grate rest composed of a center hearing having a vertical hole therein, a number of radiating arms, an integral ring, said ring being provided with an internal fiange and a iframe formed provided with a slot iormed with the ring, trunnions formed with said rest mounted in bearings in the walls of the heating device, .wheels mounted upon the rest, a grate ring having an extension and an ear formed therewith and provided With a central opening adapted to rest upon the wheels, a conical central fuel support, a shaft formed therewith passing through the hole in the hearing of the rest, a shaking rod, one end of which is connected to the ear and the opposite end passing through the walls of the heating device, a segmental gear mounted on the lower end of the shaft below the grate rest, means for copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

securely holding it in position, a projection formed with the under side of the rest, another segmental gear mounted on said projection, means for holding it in place upon said projection, a shanlr formed with said segmental gear provided with a bifurcated outer end, between the members of which operates the extension from the grate ring, and a hook pivoted to the walls of the ash pit, the nose of which engages the slot in the trame for holding the parts in a horizontal position.

3. A heating device of cylindrical form at the grate level, a grate rest cylindrical in shape mounted within the body of the heating device, a forwardly extending frame formed integral with said grate rest, means engaging said frame for holding the latter and the grate rest in a horizontal position, a grate ring having a central opening rotatably mounted upon the grate rest, a depending extension formed with said grate ring, a conical central fuel support having a shaft formed therewith, said shaft journaled in a portion of the grate rest when the central fuel support lies in the central opening of the grate ring, a segmental gear carried by the shaft, another segmental gear pivoted to the grate support and meshing with the former, and a shank formed with the last named segment-al gear, the free end of which engages the depending extension torned with the grate ring.

l. A heating device comprising a body, a grate rest having a central bearing support within the body, a grate ring having a central aperture rotatably mounted upon the grate rest, a central fuel support provided with an integral shaft, said central fuel support lying within the central aperture of the grate ring and ournaled in the hearing of the grate rest, a segmental gear having a shank formed therewith pivoted to the grate support, means carried by the grate ring for engaging the -shank of the segmental gear to oscillate said gear when the grate ring is rotated, and another segmental gear mounted upon the shaft of the central fuel support, meshing with the former to cause the central fuel support to oscillate in a direction opposite to that of the grate ring.

In testimony whereof, I have hereunto aflixed my signature in the presence of two subscribing witnesses.

AMBROSE V. DAVIDSON.

Witnesses:

JOHN H. SPoNsnLLER, JOHN VVILLYARD.

Washington, D. C. 

